Don't want to jump in on your thread but I wanted to clarify that there are 2 GX roof rack mounts. One that mounts to the GX Overtrail/LC style rails like in @miko2485 photo above. The other mounts to GX low profile rails, not directly to the roof.I dug into your previous comments and saw the distinction. Thanks for the past legwork on this, I am thinking this is the way I want to go.
Edit, thought you were the one I commented on originally. Appreciate it anyway
I have a set of low profile GX rails that you can have (Cary, NC) if you want them. Then you'd just have to make sure you get the right GX rack, which is any one NOT off an OT or OT+. As you mentioned, they are noisy so people are selling them.